For citations:

Yelkey N.N., Sadykov T. EDUCATIONAL ACTIVITIES OF KHAYRETDIN BOLGANBAYEV IN KYZYLZHAR IN 1924-1928 (based on the materials of the North Kazakhstan State Archive). Bulletin of the Khalel Dosmukhamedov Atyrau University. 2025;77(2):64-76. (In Kazakh) https://doi.org/10.47649/vau.25.v77.i2.06